{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T10:46:13Z","timestamp":1776941173324,"version":"3.51.4"},"reference-count":0,"publisher":"Index Copernicus","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,4,30]]},"abstract":"<jats:p>Background. Different methods have been adopted to treat delayed union and non-union of fractures of the base of the fifth metatarsal using screws, plates and tension band wires. There has been increasing use of intramedullary screw fixation to treat these fractures with variable rates of success. The optimum screw diameter and properties have been a subject of debate. To assess the results of using a larger diameter 5.5 mm cannulated, headless variable-pitch screw to fix delayed union of Jones fracture of the base of the fifth metatarsal.  \nMethods and methods. A case series study including 24 patients with delayed union of Jones fifth meta\u00adtar\u00adsal fractures. The fractures were fixed by a 5.5 mm cannulated variable-pitch compression titanium screw (Acumed\u00ae Acutrak 2\u00ae Screw System). \nResults. Radiological union was achieved in all patients at a mean of 7.2 weeks. At 12 months\u2019 follow up, patients had a mean American Orthopedic Foot &amp; Ankle Society midfoot score of 95.6. The mean Short Form 12 Physical and mental survey scores improved from 22.71 and 29.31 points preoperatively to 57.88 and 59.54 respectively. \nConclusion.The headless compression screw achieved a satisfactory union rate for delayed union Lawren\u00adce zone II fractures of the base of the fifth metatarsal with satisfactory functional results.\n\n<\/jats:p>","DOI":"10.5604\/01.3001.0014.8140","type":"journal-article","created":{"date-parts":[[2021,4,30]],"date-time":"2021-04-30T08:42:44Z","timestamp":1619772164000},"page":"121-127","source":"Crossref","is-referenced-by-count":4,"title":["Headless Compression Screw Fixation of Delayed Union Jones Fractures: A Case Series"],"prefix":"10.5604","volume":"23","author":[{"given":"Ahmed","family":"Nagi","sequence":"first","affiliation":[{"name":"University Hospitals Derby and Burton , Orthopaedic Department, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mosab","family":"Elgalli","sequence":"additional","affiliation":[{"name":"University Hospitals Derby and Burton , Orthopaedic Department, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Islam","family":"Mubark","sequence":"additional","affiliation":[{"name":"University Hospitals Derby and Burton , Orthopaedic Department, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bahaa A.","family":"Motawea","sequence":"additional","affiliation":[{"name":"Al-Hadra University Hospitals, Alexandria University, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charalampos","family":"Karagkevrekis","sequence":"additional","affiliation":[{"name":"University Hospitals Derby and Burton , Orthopaedic Department, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3689","container-title":["Ortopedia Traumatologia Rehabilitacja"],"original-title":[],"deposited":{"date-parts":[[2021,4,30]],"date-time":"2021-04-30T08:42:51Z","timestamp":1619772171000},"score":1,"resource":{"primary":{"URL":"https:\/\/ortopedia.com.pl\/gicid\/01.3001.0014.8140"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4,30]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2021,4,30]]}},"URL":"https:\/\/doi.org\/10.5604\/01.3001.0014.8140","relation":{},"ISSN":["1509-3492","2084-4336"],"issn-type":[{"value":"1509-3492","type":"print"},{"value":"2084-4336","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,4,30]]}}}